hi, 2009/9/3 Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>: > Hi! > > On 15:47 Thu 03 Sep , JiSheng Zhang wrote: >> ---------- Forwarded message ---------- >> From: JiSheng Zhang <jszhang3@xxxxxxxxx> >> Date: 2009/9/3 >> Subject: disable_irq in ndo_poll_controller >> To: netdev@xxxxxxxxxxxxxxx >> >> >> Hi list, >> >> I found that there are three disable irq method in nicard drivers >> ndo_poll_controller implementation : >> 1.disable_irq > > disable interrupts, crash if they are already disabled > >> 2.loacle_irq_save > > disable interrupts, do not crash if they are already disabled > >> 3.program nicard's register > > My guess without knowing or having looked at the driver is that it might > tell the device to stop sending interrupts. Instead the device may be polled > if there is work to do. This reduces the load if the device would otherwise > send lots of interrupts. > Do you mix up poll_controller in netconsole and poll in NAPI? Thanks, Jisheng -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
